Thread: Llyn Idwal compared to Whig compared to PHIG compared to Escher

PHIG is People Hone Indeterminate Grit, = Guangxi stone

This might sound crazy but go out to your sidewalk and try that, if you can get the dish out on the sidewalk then finish on a plate. I've done a very dished Arkansas that way

Originally Posted by TrilliumLT

I have what I believe is a Llyn Idwal and they are not joking when they say it's a hard stone. It's dished and almost impossible to lap. I've spent a few hours over the years trying to remove the large dish and have come to the conclusion that I'm going to cut it flat. Then spend more ours lapping. Went it gets there I'll post my stones honing results here.

Originally Posted by TrilliumLT

Dmt course. Big flattening plate with compound. Sander with super course belt. Lord nows I've tried. They are tough. My two charnleys are soft in comparison.

Something you might try before giving up that has worked for me with severely dished and very hard stones... Use a 16 x 8 x 2 concrete block, sand, and water. Wet the sand on the block and rub-a-dub, add water, add sand, clear the mud from time to time. After it's flat refine it with a plate or whatever. Cheap and effective.

I lapped my lin idwal on 60 grit sandpaper laid out on concrete. I put a whole lot of force behind it and I took it out and about 5 hours. Mine had a good quarter inch deep dish in it and after lapping it on glass up to 2500 Grit it's a wonderful finisher. I find that it has properties similar to a translucent Arkansas in the fact that you can actually set a grit on it.... if that makes any sense.

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Nice stone thanks for sharing. Do you have any better pics of the one called an Llyn Idwal?
MIke

Originally Posted by MODINE

Nice stone thanks for sharing. Do you have any better pics of the one called an Llyn Idwal?
MIke

Just looks a bit like my "Cutlers green" from the pictures!

Could be, see any pink in the stone?

OK heres a pic of my stone. Its currently with Andrew "HARRYWALLY" getting cut into 3 stones. Stone is rather large.

My bad, I was referring to jaswarb pic. did not realize it was resurrected post from 2012.
Mike